std::unordered_set::emplace

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C++ Standard Library
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Containers library
array (C++0x feature) vector deque forward_list (C++0x feature) list set multiset map multimap unordered_set (C++0x feature) unordered_multiset (C++0x feature) unordered_map (C++0x feature) unordered_multimap (C++0x feature) stack queue priority_queue
std::unordered_set
Member functions unordered_set::unordered_set unordered_set::~unordered_set unordered_set::operator= unordered_set::get_allocator Iterators unordered_set::begin unordered_set::cbegin unordered_set::end unordered_set::cend Capacity unordered_set::erase unordered_set::size unordered_set::max_size Modifiers unordered_set::clear unordered_set::insert unordered_set::emplace unordered_set::emplace_hint unordered_set::erase unordered_set::swap Lookup unordered_set::count unordered_set::find unordered_set::equal_range Bucket interface unordered_set::begin(int) unordered_set::end(int) unordered_set::bucket_count unordered_set::max_bucket_count unordered_set::bucket_size unordered_set::bucket Hash policy unordered_set::load_factor unordered_set::max_load_factor unordered_set::rehash unordered_set::reserve Observers unordered_set::hash_function unordered_set::key_eq

​template <class... Args> std::pair<iterator, bool> emplace( Args&&... args );​		(C++0x)

Inserts a new element to the container. The element is constructed in-place, i.e. no copy or move operations are performed. The constructor of the element is called with exactly the same arguments, as supplied to the function.

Contents 1 Parameters 2 Return value 3 Complexity 4 See also

Parameters

args

-

arguments to forward to the constructor of the element

Return value

returns a pair consisting of a ​bool​ denoting whether the insertion took place and an iterator to the inserted element.

Complexity

This section is incomplete

See also

emplace_hint (C++0x)	constructs elements in-place using a hint (public member function)
insert	inserts elements (public member function)